SSC Government Jobs Exams Numerical Ability Arithmetic

Find the units place in the expression:
621 × 319 + 471

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SSC Other Question

Rationalise the denominator and find
the answer to 2 decimal places There are 40 boys in a class. One of the
boys goes away and is replaced by a boy weighing
80 kg, by which the average increases by
0.5 kg. What was the weight of the boy who
went away?